EP 3231837 B1 20220824 - MICROPOROUS POLYOLEFIN FILM, SEPARATOR FOR BATTERY, AND PRODUCTION PROCESSES THEREFOR
Title (en)
MICROPOROUS POLYOLEFIN FILM, SEPARATOR FOR BATTERY, AND PRODUCTION PROCESSES THEREFOR
Title (de)
MIKROPORÖSER POLYOLEFINFILM, SEPARATOR FÜR EINE BATTERIE UND PRODUKTIONSVERFAHREN DAFÜR
Title (fr)
FILM DE POLYOLÉFINE MICROPOREUX, SÉPARATEUR DE BATTERIE, ET LEURS PROCÉDÉS DE PRODUCTION
Publication
Application
Priority
- JP 2014250824 A 20141211
- JP 2015081198 W 20151105
Abstract (en)
[origin: EP3231837A1] The present invention provides a polyolefin microporous membrane which is suitable for providing thereon a porous layer having little variation in thickness, which has a fluctuation range of F25 value in the length direction of 1 MPa or less, and which has a length of 1,000 m or more (wherein the F25 value refers to a value obtained by: measuring a load value applied to a test specimen when the test specimen is stretched by 25% using a tensile tester; and dividing the load value by the value of the cross-sectional area of the test specimen).
IPC 8 full level
H01M 50/449 (2021.01); B32B 5/32 (2006.01); B32B 27/32 (2006.01); C08J 9/28 (2006.01); H01M 10/0525 (2010.01); H01M 10/0587 (2010.01); H01M 50/403 (2021.01); H01M 50/406 (2021.01); H01M 50/411 (2021.01); H01M 50/417 (2021.01); H01M 50/469 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01)
CPC (source: EP KR US)
B29C 48/08 (2019.02 - KR); B29C 55/12 (2013.01 - KR); B32B 5/32 (2013.01 - EP KR US); B32B 27/32 (2013.01 - EP KR US); B41F 13/11 (2013.01 - KR); C08J 5/2231 (2013.01 - KR); C08J 9/28 (2013.01 - EP KR US); H01M 10/0525 (2013.01 - EP KR US); H01M 10/0587 (2013.01 - EP KR US); H01M 50/403 (2021.01 - KR); H01M 50/406 (2021.01 - EP KR US); H01M 50/411 (2021.01 - KR); H01M 50/417 (2021.01 - EP KR US); H01M 50/449 (2021.01 - EP KR US); H01M 50/469 (2021.01 - EP KR US); H01M 50/489 (2021.01 - KR); H01M 50/491 (2021.01 - KR); B29K 2105/041 (2013.01 - KR); H01M 50/489 (2021.01 - EP US); H01M 50/491 (2021.01 - EP US); Y02E 60/10 (2013.01 - EP KR); Y02P 70/50 (2015.11 - EP KR)
Citation (examination)
- KR 20140086843 A 20140708 - CHEIL IND INC [KR]
- JP 2009076410 A 20090409 - HITACHI MAXELL
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3231837 A1 20171018; EP 3231837 A4 20180711; EP 3231837 B1 20220824; CN 107207761 A 20170926; CN 107207761 B 20210108; HU E060294 T2 20230228; KR 102166652 B1 20201016; KR 20170093789 A 20170816; MY 176100 A 20200724; US 10784482 B2 20200922; US 2017317328 A1 20171102; US 2020303705 A1 20200924; WO 2016092993 A1 20160616
DOCDB simple family (application)
EP 15866428 A 20151105; CN 201580067468 A 20151105; HU E15866428 A 20151105; JP 2015081198 W 20151105; KR 20177011993 A 20151105; MY PI2017702078 A 20151105; US 201515531807 A 20151105; US 202016890185 A 20200602